Automatic monitor for comparing designations received and transmitted by control circuits in dial switching systems



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ATTORNEY 34 Sheets-Sheet 1 I DEHN ET AL IN DIAL SWITCHING SYSTEMS AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS Filed Dec. 31, 1948 May 16, 1950 lNVEA/TORS' May 16, 1950 J. w. DEHN ETAL AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN um. SWITCHING SYSTEMS 34 Sheets-Sheet 2 Filed Dec. 31, 1948 r .1. w. DEHN. 'NVENTORS 0. H. WILL/FORD ATTORNEY w QM May 16, 1950 J. w. DEHN ETAL AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN DIAL SWITCHING SYSTEMS 34 Sheets-Sheet 3 Filed Dec. 31, 1948 J. w; DEH/V 0.. WILL/FORD HVVE/VTORS 6' MAJ/L h at ATTORNEY May 16, 1950 J. w. DEHN ETAL 2,503,053

AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN DIAL SWITCHING SYSTEMS 34 Sheets-Sheet 4 Filed Dec. 31, 1948 n 0 N Nm m HF EU A D wuw 0 n w m N m w vv6\| May 16, 1950 J. w. DEHN ETAL 2,508,053

- AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL cmcurrs IN DIAL SWITCHING SYSTEMS F i led Dec. 31, 1948 34 Sheets-Sheet s I I TO TIM/N6 T :i k n. I 3

3 Us k: F lo J l o a l E Tt I ff l INVENTORS: J W DE HN ya HW/LL /FORD. g BY C. 211% ATTORNEY May 16, 1950 J. w. DEHN ETAL 2,508,053

AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL cmcurrs IN DIAL swn'cnmc SYSTEMS Filed Dec. 51, 1948 34 Sheets-Sheet 6 J. w. DEH/V w H. WILL/FORD f a. a ATTORNEY DEHN ET AL AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS May 16, 1950 J. w.' 2,50 ,053

RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS I IN DIAL SWITCHING SYSTEMS 34 Sheets-Sheet 7 Filed Dec. 51, 1948 J. W. DE HIV uvvmrms a 0170 5 C; ATTORNEY y 1950 J. w. DEHN ETAL 2,508,053

AUTOMATIC MONITOR FOR, COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS V IN DIAL SWITCHING SYSTEMS Filed Dec. 51, 1948 34 Sheets-Sheet 8 Jiw. DEHN A TTOR/VEY May 16, 1950 J. W. DEHN ET AL AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN DIAL SWITCHING SYSTEMS s4 Sheets-$heet 9 Filed Dec. :51, 1948 TIER. .671 \426 I wfiw\ I I mw m ma I 3: I II 26mm 2.13 I I Tm I I I IIJMQWW QkNIh- QQIWKIII 060 II l I I I I I d I. I n l I. 2 .Q 6% MW fl w M M I w k H kqu fin $8 E H oooT filn m H DH? is pun IWIIII 5:232 63 23 85 2 2 we 3 III Ma Bbk 32. 3. 3L $7: vsl qq m 3L www l J. was/1N IN VEN TORS 7 0. H. W/LL/FORD A 7'7'ORNEY J. W. DEHN ET AL v AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL'CIRCUITS May 16, 1950 IN DIAL SWITCHING SYSTEMS Filed Dec. 51, 1948 34 Sheetls-Sheet 10 J.- w. DEHN, o. H. WILL/FORD v C )ZQZZZZ ATTORNEY 2 SS NT OI mm mm GC I am D mm m NOD E.RT

m m c A mm Tc mm IN DIAL SWITCHING SYSTEMS 34 Sheets-Sheet 11 Filed Dec. 61, 1948 J. :42 DEHIV a. H. WILL/FORD //V VE N TORS c. Jaw

ATTORNEY May 16, 1950 J. w. DEHN 'ETAL, 2,508,053

AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY common. CIRCUITS IN DIAL swrrcnmc SYSTEMS Filed Dec. 31, 1948 54 Sheets-Sheet 12 .u. w. DEHN a. H. WILL/FORD ATTORNEY May 16, 1950 J. w. DEHN ETAL 2,508,053

AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN DIAL SWITCHING SYSTEMS Filed Dec. 31, 1948 34 SheetS-Sheet l3 In. DEHA; 'WENTORS 0.H. WILL/FORD FIG. [3

A TTOR/VE Y May 16, 1950 J. w. DEHN ETAL 2,508,053

AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS Y RECEIVED AND TRANSMITTED B1! CONTROL CIRCUITS IN DIAL SWITCHING SYSTEMS I Filed Dec. 51, 1948 34 Sheets-Sheet l4 m mslrn rEsr com.

I I I v u. w. DEHN- WVENTO 0. H. WILL/FORD Y ATT'Qfi/VEY y 50 J. w. DEHN ETAL 2,508,053

AUTOMATIC MONITOR FOR commune DESIGNATIONS RECEIVED AND TRANSMITTED BY CQNTROL CIRCUITS I m DIAL swncamc svs'rms Filed Dec. :51, 1948 s4 Sheets-Sheet 1s INVENTORS J. W DEH/v 0. H. WILL/FORD C- haw ATTO/jlYEY FIG. /5

34 Shgets-Sheet 16 J. W. DEHN 'ET AL AUTOMATIC MONITOR FOR COMPARING. DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN DIAL SWITCHING SYSTEMS May 16, 1950 Filed Dec. 51, 1948' J. mam/v WVENTORS' o. H WILL/FORD BY 0 )K ATTORNEY wmwi wnwi May 16, 1950 J. w. DEHN ET AL 2,503,053

AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN DIAL swrwcumc SYSTEMS Filed Dec. 31, 1948 34 Sheets-Sheet 17 J.W. DEH/V 0. H. WILL/FORD v ATTORNEY 34 Shees-$heet 18 I May 16, 1950 J. w. DEHN ETAL AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN DIAL SWITCHING SYSTEMS Filed Dec. 31, 1948 U M ki as F r EU a m n N 0 8 Y ,R B m w w $9M May 16, 1950 J. w. DEHN ETAL 2,508,053

AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS- IN DIAL SWITCHING SYSTEMS Filed Dec. 31, 1948 34 Sheets-Sheet 19 TO TONE J. w. bEH/v 9 WVENTORS 0. H. WILL/FORD By 271% I ATTORNEY May 16, 1950 Y J. w. DEHN ET AL AUTOMATIC MONITOR FOR COMPARING DESIGNATIONS RECEIVED AND TRANSMITTED BY CONTROL CIRCUITS IN DIAL SWITCHING SYSTEMS 34 Sheets-Sheet 20 Filed Dec. 31, 1948 mmvt 5 2 ./.W. DEHN MEMO 0. H. WILL/FORD BY c 2! ATTORNEY 

